EP3228437B1 - Dispositif de production d'un récipient creux - Google Patents

Dispositif de production d'un récipient creux Download PDF

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Publication number
EP3228437B1
EP3228437B1 EP15864497.1A EP15864497A EP3228437B1 EP 3228437 B1 EP3228437 B1 EP 3228437B1 EP 15864497 A EP15864497 A EP 15864497A EP 3228437 B1 EP3228437 B1 EP 3228437B1
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EP
European Patent Office
Prior art keywords
intermediate frame
pair
parison
hollow container
molds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15864497.1A
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German (de)
English (en)
Other versions
EP3228437A1 (fr
EP3228437A4 (fr
Inventor
Kazuhiro Ohtaki
Satoru Araya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yachiyo Industry Co Ltd
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Yachiyo Industry Co Ltd
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Publication date
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Publication of EP3228437A1 publication Critical patent/EP3228437A1/fr
Publication of EP3228437A4 publication Critical patent/EP3228437A4/fr
Application granted granted Critical
Publication of EP3228437B1 publication Critical patent/EP3228437B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4205—Handling means, e.g. transfer, loading or discharging means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/02—Combined thermoforming and manufacture of the preform
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/04—Combined thermoforming and prestretching, e.g. biaxial stretching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum
    • B29C51/105—Twin sheet thermoforming, i.e. deforming two parallel opposing sheets or foils at the same time by using one common mould cavity and without welding them together during thermoforming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/261—Handling means, e.g. transfer means, feeding means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
    • B29C2049/2008—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements inside the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
    • B29C2049/2008—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements inside the article
    • B29C2049/2013—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements inside the article for connecting opposite walls, e.g. baffles in a fuel tank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C2049/4879—Moulds characterised by mould configurations
    • B29C2049/4881—Moulds characterised by mould configurations having a mandrel or core e.g. two mould halves with a core in-between
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/006—Using vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/007—Using fluid under pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/025—General arrangement or layout of plant
    • B29C48/0255—General arrangement or layout of plant for extruding parallel streams of material, e.g. several separate parallel streams of extruded material forming separate articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06905—Using combined techniques for making the preform
    • B29C49/0691—Using combined techniques for making the preform using sheet like material, e.g. sheet blow-moulding from joined sheets
    • B29C49/06914—Using combined techniques for making the preform using sheet like material, e.g. sheet blow-moulding from joined sheets using parallel sheets as a preform
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06905—Using combined techniques for making the preform
    • B29C49/0691—Using combined techniques for making the preform using sheet like material, e.g. sheet blow-moulding from joined sheets
    • B29C49/06916—Means for avoiding parts of the sheets to stick together, e.g. to provide blow opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4205—Handling means, e.g. transfer, loading or discharging means
    • B29C49/42069—Means explicitly adapted for transporting blown article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4205—Handling means, e.g. transfer, loading or discharging means
    • B29C49/42093—Transporting apparatus, e.g. slides, wheels or conveyors
    • B29C49/42105—Transporting apparatus, e.g. slides, wheels or conveyors for discontinuous or batch transport
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4273—Auxiliary operations after the blow-moulding operation not otherwise provided for
    • B29C49/42826—Separating burr or other part from the article, e.g. using mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C49/4823—Moulds with incorporated heating or cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/261—Handling means, e.g. transfer means, feeding means
    • B29C51/262—Clamping means for the sheets, e.g. clamping frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/266—Auxiliary operations after the thermoforming operation
    • B29C51/267—Two sheets being thermoformed in separate mould parts and joined together while still in the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0065—Permeability to gases
    • B29K2995/0067—Permeability to gases non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0068—Permeability to liquids; Adsorption
    • B29K2995/0069—Permeability to liquids; Adsorption non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7172—Fuel tanks, jerry cans

Definitions

  • the present invention relates to a device for producing a hollow container such as a fuel tank of an automotive vehicle.
  • JP 48-062858 discloses a hollow container producing device having a convex mold, a concave mold, and a preform mold which is arranged in between the convex mold and the concave mold when molding process is carried out.
  • the production using this hollow container producing device involves separately forming two plastic sheets (a pair of parison sheets), molding them into half shells, and then bonding the half shells to each other to thereby produce a hollow container.
  • JP 48-062858 does not disclose anything about the transport mechanism for carrying the preform mold and the two plastic sheets to the convex mold and the concave mold. Taking into account that the preform mold is moved to or away from a position between the convex mold and the concave mold in each cycle of the molding process and that the two plastic sheets are carried in such a way that the two plastic sheets do not adhere to each other, it is believed that the preform mold and the two plastic sheets are separately carried. Such a transport mechanism requires a large amount of carrying time and thus causes a prolonged molding cycle.
  • the transport unit is capable of carrying the pair of parison sheets and the intermediate frame to a position between the pair of molds in a single carrying operation. This enables reduction of the cycle of the molding process in producing a hollow container using a pair of parison sheets.
  • the intermediate frame is capable of holding the pair of parison sheets with the pair of parison sheets being spaced apart from each other. Thus, the pair of the parison sheets will not adhere to each other while the carrying operation by the transport unit is being carried out.
  • the hollow container producing device may include a jetting unit that discharges a jet of gas toward each of the pair of parison sheets from an intermediate frame side of the parison sheet.
  • blow molding by the jetting unit can be carried out to the pair of parison sheets. This improves the molding accuracy.
  • the intermediate frame of the hollow container producing device may include a plug projecting toward one of the molds.
  • This configuration provides a high degree of flexibility in designing the shape and thickness of the hollow container.
  • the present invention enables reduction of the cycle of the molding process in producing a hollow container using a pair of parison sheets.
  • FIGs. 1A to 1C each show a hollow container producing device of the first embodiment of the invention, which allows to produce a hollow container using a pair of parison sheets P, P, by vacuum-molding.
  • the hollow container producing device according to the first embodiment includes a pair of molds 2, 3, an intermediate frame 1A, and a transport unit 5.
  • the molds 2, 3 are metal molds for forming the external shape of a hollow container by vacuum-molding.
  • the molds 2, 3 respectively have recesses Q, Q for forming a cavity.
  • Each of the molds 2, 3 has suction holes (not shown) for vacuum-molding, which are in communication with the recess Q of the mold.
  • the mold 2 has a raised portion 2a that is formed raised in a frame-like shape around the periphery of the recess Q of the mold 2.
  • the mold 2 has a shoulder portion 2b formed outside the raised portion 2a, at a predetermined distance below the raised portion 2a.
  • the mold 3 has a raised portion 3a that is formed raised in a frame-like shape around the periphery of the recess Q of the mold 3.
  • the mold 3 has a shoulder portion 3b formed outside the raised portion 3a, at a predetermined distance below the raised portion 3a.
  • the intermediate frame 1A is a center mold to be placed and clamped between the molds 2, 3.
  • the intermediate frame 1A has a rectangular frame shape.
  • the intermediate frame 1A has a through-opening located in the center thereof that extends through in the thickness direction of the frame 1A.
  • the intermediate frame 1A has vents 1a which are in communication with the through opening and through which the outside air is taken in while suction for vacuum-molding is being applied.
  • the intermediate frame 1A of the first embodiment has sides each of which is provided with two vents 1a. However, the number of the vents 1a is not limited to this.
  • the transport unit 5 is a device for carrying the intermediate frame 1A and the parison sheets P, P to a position between the molds 2, 3 (see FIG. 2 ), in a manner later described.
  • the transport unit 5 has an arm 5a, a coupling 5b, and a hand 5c.
  • the arm 5a is rod-shaped and moves in a predetermined space to carry the intermediate frame 1A and the parison sheets P, P.
  • the coupling 5b couples the arm 5a and the hand 5c together and is capable of changing the coupling angle therebetween.
  • the hand 5c constitutes a front end part of the transport unit 5 and holds the intermediate frame 1A and the parison sheets P, P.
  • the hand 5c has a slider 6 and a pair of chucks 7, 7.
  • the slider 6 is a device that causes the chucks 7, 7 to slide close to or apart from each other. To a widthwise center portion of the slider 6, an upper portion of the intermediate frame 1A is fixed.
  • the slider 6 is provided with an actuator (not shown) that actuates the chucks 7, 7.
  • the chucks 7, 7 are a pair of rod-like members that are slid by the slider 6.
  • the chucks 7, 7 are capable of holding the parison sheets P, P on the intermediate frame 1A by sandwiching an upper portion of the intermediate frame 1A and upper portions of the pair of parison sheets P, P between the chucks 7, 7.
  • the parison sheets P, P are each for example formed of a thermoplastic resin including a barrier layer.
  • Each of the parison sheets P, P has a multi-layer structure including an EVOH layer (ethylene-vinyl alcohol copolymer layer), which is located in the middle of the multi-layer structure as a barrier layer that blocks fuel transmission.
  • the multi-layer structure includes a PE layer (polyethylene layer), adhesive layers, and other layers as well.
  • the parison sheets P, P are each in a rectangular sheet shape.
  • Such parison sheets P, P can be obtained for example by: preparing a specialized die head (not shown) by disposing two branching members facing each other in an outlet of a general die head, through which cylindrical parison is to be extruded, to branch a cylindrical parison flow; and extruding parison from the specialized die head so as to convert the parison to sheets.
  • the parison sheets P, P each formed in a rectangular shape are guided to the opposite sides of the intermediate frame 1A from above, between the chucks 7, 7.
  • the transport unit 5 carries the intermediate frame 1A and the pair of parison sheets P, P sandwiched by the chucks 7, 7 to a position between the molds 2, 3.
  • the molds 2, 3 are closed against the carried intermediate frame 1A and parison sheets P, P, and then clamped together.
  • the shoulder portions 2b, 3b of the molds 2, 3 make contacts with the opposite sides of the intermediate frame 1A.
  • the raised portion 2a of the mold 2 and the raised portion 3a of the mold 3 are not in contact with each other and accepted in the through-opening of the intermediate frame 1A. This means that the raised portions 2a and 3a are formed in a smaller size than the intermediate frame 1A.
  • parison sheets P, P which have been drawn down and cut into two pieces, are moved down toward the transport unit 5 of the hollow container producing device arranged at a predetermined place.
  • the direction in which the parison sheets P, P are moved down is a direction from the front surface to the back surface of the drawing plane of FIG. 3 .
  • the pair of parison sheets P, P are guided to respective positions between the chucks 7, 7 opened outward and the intermediate frame 1A.
  • the chucks 7, 7 of the transport unit 5 slide inward to sandwich an upper portion of the intermediate frame 1A and upper portions of the parison sheets P, P between the chucks 7, 7.
  • the parison sheets P, P are held on opposite sides of the intermediate frame 1A.
  • the arm 5a is moved so as to carry the parison sheets P, P and the intermediate frame 1A to a position between the molds 2, 3, with the pair or parison sheets P, P being held on the opposite sides of the intermediate frame 1A by the chucks 7, 7.
  • the molds 2, 3 are closed against the carried intermediate frame 1A and parison sheets P, P, and then clamped together. Peripheral portions of the parison sheets P, P are pinched off by the shoulder portions 2b, 3b of the molds 2, 3 and side surfaces of the intermediate frame 1A.
  • the molds 2, 3 are opened and the chucks 7, 7 of the transport unit 5 are slid outwardly.
  • the chucks 7, 7 of the transport unit 5 are slid outwardly and then the molds 2, 3 are opened.
  • Burr portions of the parison sheets P, P other than the half shells PI, P1 are cut away from the intermediate frame 1A. Alternatively, the burr portions may be left as is at this stage and then cut out in a later stage after the half shells P1, P1 are joined to each other as described later.
  • the transport unit 5 moves away to a predetermined place together with the intermediate frame 1A, which has been released from the molds 2, 3 having been opened.
  • a transport unit 5A carries built-in parts 8 held by a hand 5d to a position between the half shells P1, P1.
  • the transport unit 5 and the transport unit 5A are separate units.
  • the hand 5c which is attached to arm 5a of the transport unit 5, may be configured to be replaceable with the hand 5d so that the transport unit 5 and the transport unit 5A share most of their parts in common.
  • the built-in parts 8 include valves and wave-eliminating plates, which are attached to an inner wall of the hollow container.
  • Actuators (not shown) mounted in the hand 5d are operated so as to force the built-in parts 8 into the half shells PI, P1 and attach the built-in parts 8 thereto.
  • the hand 5d itself may be moved so as to force the built-in parts 8 into the half shells PI, P1 and attach the built-in parts 8 thereto.
  • the transport unit 5A is moved away to a predetermined place.
  • the transport unit 5 is capable of carrying the pair of parison sheets P, P and the intermediate frame 1A to a position between the pair of molds 2, 3 in a single carrying operation. This enables reduction of the cycle of the molding process in producing a hollow container using a pair of parison sheets P, P.
  • the intermediate frame 1A is capable of holding the pair of parison sheets P, P with the pair of parison sheets P, P being spaced apart from each other. Thus, the pair of the parison sheets P, P will not adhere to each other while the carrying operation by the transport unit 5 is being carried out.
  • a hollow container producing device further includes a jetting unit that discharges a jet of gas toward each of the pair of parison sheets P, P from an intermediate frame 1A side of the parison sheet.
  • the jetting unit is constituted by vents 1a and air supply means (not shown) such as an air compressor.
  • a jet of air supplied by the air supply means through the vents 1a is discharged toward the parison sheets P, P via the through-opening of the intermediate frame 1A.
  • Vacuum suction is carried out to the parison sheets through the molds 2, 3, and, at the same time, a jet of air is discharged toward each of the pair of parison sheets P, P from an intermediate frame 1A side of the parison sheet.
  • This enables more positive transfer of the parison sheets P, P to the molds 2, 3.
  • the use of the jetting unit is particularly preferable when the shape of the hollow container is complex.
  • the air supply means may be arranged in the through opening of the intermediate frame 1A.
  • a hollow container producing device includes an intermediate frame 1B in place of the intermediate frame 1A.
  • the intermediate frame 1B has a through opening in which a plurality of plugs 9 and a board 1b are disposed.
  • the plugs 9 serve to cause some portions of the parison sheets P, P to have different shapes and/or thicknesses from other portions of the parison sheets P, P. In the third embodiment, three plugs 9 are provided. However, the number of the plugs 9 is not limited thereto.
  • the board 1b is a plate-like member holding the plugs 9. As shown in FIG. 5A , the board 1b extends from a top end of the intermediate frame 1B to a bottom end thereof.
  • each of the plugs 9 has a head 9a and a shaft 9b.
  • the head 9a is attached to an end of the shaft 9b.
  • the shaft 9b extends through the board 1b in a thickness direction thereof, i.e., the thickness direction of the intermediate frame 1B.
  • the hollow container producing device according to the third embodiment has an actuator (not shown) that causes the plugs 9 to move forward or backward relative to the board 1b in an axial direction of the shafts 9b.
  • the plugs 9 are within the through-opening of the intermediate frame 1B and are not in contact with the parison sheets P, P, which are held by the chucks 7, 7.
  • the plugs 9 move to the parison sheets P, P and make contacts therewith, so that the parison sheets P, P are partially cooled down. This enables configuring desired portions of the parison sheets P, P to have desired shapes and thicknesses.
  • the recesses Q, Q of the molds 2, 3 are drawn as each having a bottom portion with a flat surface.
  • the bottom portion may have ridges and dents in accordance with the desired shape of the hollow container as appropriate.
  • the use of the plugs 9 provides a high degree of flexibility in designing the shape and thickness of the hollow container.
  • the parison sheets P, P have been described as being carried with upper portions thereof being sandwiched to the upper portions of the intermediate frame 1A by the chucks 7, 7.
  • the parison sheets P, P may be carried with lower portions thereof also being sandwiched to lower portions of the intermediate frame 1A.
  • the parison sheets P, P may be carried with any portions thereof being sandwiched on the opposite sides of the intermediate frame 1A.
  • the transport unit 5A that carries built-in parts 8 and the transport unit 5 that carries the intermediate frame 1A are described as separate devices ( FIG. 4F ). However, those devices may be configured as the same device. With this configuration, one single transport unit serves to carry the intermediate frame 1A and to carry the built-in parts 8. This facilitates downsizing the workspace for producing hollow containers.
  • blow molding using the jetting unit in the second embodiment may be carried out in place of or in combination with the above-described vacuum-molding.
  • the location, dimensions, and shape of the board 1b, which is disposed in the through-opening of the intermediate frame 1B, can be set appropriately.
  • the locations and dimensions of the plugs 9 fixed to the board 1b can also be set appropriately.
  • the plugs 9 are described as each having a cylindrical shape.
  • the plug 9 can have another shape such as a hemispherical shape, taper-shape, or tubular-shape.
  • constituent members of the hand 5c of the transport unit 5 or constituent members of the hand 5d of the transport unit 5A may be configured to be replaceable to facilitate switching between different molding methods, such as the above-described vacuum-molding, general blow molding for forming a hollow container from a cylindrical parison, and simultaneous molding and filling by which a hollow container is formed by molding a cylindrical parison with a wave-eliminating plate or the like being housed therein.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (3)

  1. Dispositif de production de récipient creux pour la production d'un récipient creux en utilisant une paire de feuilles d'ébauche, comprenant :
    une paire de moules (2, 3) ;
    un cadre intermédiaire (1A) à serrer à la paire de moules; et
    une unité de transport (5) configurée pour porter le cadre intermédiaire et une paire de feuilles d'ébauche dans une position entre la paire de moules ;
    caractérisé en ce que l'unité de transport (5) comprend :
    un bras en forme de tige (5a) configuré pour porter le cadre intermédiaire et la paire de feuilles d'ébauche dans la position entre la paire de moules ;
    une main (5c) configurée pour maintenir le cadre intermédiaire et les feuilles d'ébauche, la main comprenant un coulisseau (6) et une paire de mandrins (7, 7) ; et
    un couplage (5b) pour coupler le bras et la main ensemble, le couplage étant capable de changer un angle de couplage entre le bras et la main ;
    dans lequel les mandrins (7, 7) sont configurés pour coulisser vers l'intérieur pour prendre en sandwich une portion du cadre intermédiaire et des portions des feuilles d'ébauche entre les mandrins de sorte à maintenir la paire de feuilles d'ébauche sur des côtés opposés du cadre intermédiaire ; et
    dans lequel le bras est configuré pour se déplacer de sorte à porter les feuilles d'ébauche et le cadre intermédiaire dans la position entre les moules, la paire de feuilles d'ébauche étant respectivement maintenue sur des côtés opposés du cadre intermédiaire par les mandrins.
  2. Dispositif de production de récipient creux selon la revendication 1, comprenant en outre une unité de projection qui évacue un jet de gaz vers chacune de la paire de feuilles d'ébauche (P, P) d'un côté de cadre intermédiaire de la feuille d'ébauche (P, P).
  3. Dispositif de production de récipient creux selon la revendication 1 ou 2, dans lequel le cadre intermédiaire (1A) comprend un bouchon (9) faisant saillie vers un de la paire de moules (2, 3).
EP15864497.1A 2014-12-05 2015-10-16 Dispositif de production d'un récipient creux Active EP3228437B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014246500 2014-12-05
PCT/JP2015/079264 WO2016088457A1 (fr) 2014-12-05 2015-10-16 Dispositif de production d'un récipient creux

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EP3228437A1 EP3228437A1 (fr) 2017-10-11
EP3228437A4 EP3228437A4 (fr) 2018-04-25
EP3228437B1 true EP3228437B1 (fr) 2020-08-05

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EP (1) EP3228437B1 (fr)
JP (1) JP6170259B2 (fr)
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WO (1) WO2016088457A1 (fr)

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KR101816789B1 (ko) * 2016-11-29 2018-01-15 (주)동희산업 차량용 플라스틱 연료탱크의 성형장치
CN108162361B (zh) * 2017-12-22 2019-12-13 亚普汽车部件股份有限公司 一种中空管体成型方法
CN108162363A (zh) * 2017-12-27 2018-06-15 上海艾度机器有限公司 一种塑料成型机
CN107962759A (zh) * 2017-12-27 2018-04-27 上海艾度机器有限公司 一种塑料制品成型工艺
CN109693361B (zh) * 2019-01-15 2021-02-26 亚普汽车部件股份有限公司 中空体成型辅具及成型方法
CN111251622A (zh) * 2020-03-13 2020-06-09 翁益明 一种高效经济的片材塑料件成型工艺方法
CN111438922A (zh) * 2020-04-26 2020-07-24 中山市精镀机电设备有限公司 一种吸塑成型模具及吸塑成型方法
CN111674019A (zh) * 2020-04-26 2020-09-18 中山市精镀机电设备有限公司 一种吸塑成型模具装置及其成型方法

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DK137038B (da) 1975-10-31 1978-01-09 Toerben Jorgensoe Fremgangsmåde til fremstilling af en lamineret beholder samt form til brug ved udøvelsen af fremgangsmåden.
JPH06867A (ja) * 1992-06-23 1994-01-11 Toyo Sheet:Kk 樹脂成形品のブロー成形方法及びその実施に使用する装置
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JP4093582B2 (ja) * 2004-10-05 2008-06-04 株式会社日本製鋼所 中空成形方法及びその装置
DE102007028881B4 (de) 2007-06-20 2014-07-10 Kautex Textron Gmbh & Co. Kg Verfahren zur Herstellung von Hohlkörpern aus thermoplastischem Kunststoff
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JP5519560B2 (ja) 2011-03-11 2014-06-11 八千代工業株式会社 中空成形品の製造装置および製造方法
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Publication number Publication date
US10265904B2 (en) 2019-04-23
US20180257290A1 (en) 2018-09-13
WO2016088457A1 (fr) 2016-06-09
JPWO2016088457A1 (ja) 2017-08-03
CN107073796B (zh) 2019-05-14
CN107073796A (zh) 2017-08-18
JP6170259B2 (ja) 2017-07-26
EP3228437A1 (fr) 2017-10-11
EP3228437A4 (fr) 2018-04-25

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